<template>
  <div class="home">
    <v-head></v-head>
    <v-sidebar></v-sidebar>
    <div class="content-box" :class="{'content-collapse': collapse}">
      <v-tags></v-tags>
      <div class="content">
        <transition name="move" mode="out-in">
          <keep-alive :include="tagsList">
            <router-view></router-view>
          </keep-alive>
        </transition>
      </div>
    </div>
  </div>
</template>

<script>
import vHead from 'common/Header.vue'
import vSidebar from 'common/Sidebar.vue'
import vTags from 'common/Tags.vue'
import bus from './bus'
export default {
  name: "home",
  data() {
    return {
      tagsList: [],
      collapse: false
    }
  },
  components: {
    vHead, vSidebar, vTags
  },
  created() {
    bus.$on('collapse', msg => {
      this.collapse = msg;
    })

    // 只有在标签页列表里的页面才使用keep-alive，即关闭标签之后就不保存到内存中了。
    bus.$on('tags', msg => {
      let arr = [];
      for(let i = 0, len = msg.length; i < len; i ++){
        msg[i].name && arr.push(msg[i].name);
      }
      this.tagsList = arr;
    })
  }
};
</script>
<style lang="scss">

</style>